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Basic Concepts of String Theory

- R. Blumenhagen, D. Luest, S. Theisen
- Physics
- 3 October 2012

The Classical Bosonic String.- The Quantized Bosonic String.- Introduction to Conformal Field Theory.- Parametrization Ghosts and BRST Quantization.- String Perturbation Theory and One-Loop… Expand

190 15

Lectures on string theory

- D. Luest, S. Theisen
- Physics
- 1989

This book provides an introduction to string theory, at present one of the fastest-growing areas in theoretical high-energy physics. It introduces modern techniques and concepts, such as conformal… Expand

332 14

T-duality and closed string non-commutative (doubled) geometry

- D. Luest
- Physics
- 7 October 2010

We provide some evidence that closed string coordinates will become non-commutative turning on geometrical fluxes and/or H-field flux background in closed string compactifications. This is in analogy… Expand

153 11- PDF

Stationary solutions of N = 2 supergravity

- K. Behrndt, D. Luest, W. Sabra
- Physics
- 19 January 1998

Abstract We discuss general bosonic stationary configurations of N = 2, D = 4 supergravity coupled to vector multiplets. The requirement of unbroken supersymmetries imposes constraints on the… Expand

120 10

A ten-dimensional action for non-geometric fluxes

- David Andriot, Magdalena Larfors, D. Luest, Peter Patalong
- Physics, Mathematics
- 20 June 2011

The NSNS Lagrangian of ten-dimensional supergravity is rewritten via a change of field variables inspired by Generalized Complex Geometry. We obtain a new metric and dilaton, together with an anti… Expand

167 9- PDF

Heterotic domain wall solutions and SU(3) structure manifolds

- J. Gray, Magdalena Larfors, D. Luest
- Physics
- 28 May 2012

A bstractWe examine compactifications of heterotic string theory on manifolds with SU(3) structure. In particular, we study $ \mathcal{N} = {{1} \left/ {2} \right.} $ domain wall solutions which… Expand

36 6- PDF

3-cocycles, non-associative star-products and the magnetic paradigm of R-flux string vacua

A bstractWe consider the geometric and non-geometric faces of closed string vacua arising by T-duality from principal torus bundles with constant H-flux and pay attention to their double phase space… Expand

75 6- PDF

Non-associative deformations of geometry in double field theory

- R. Blumenhagen, Michael Fuchs, F. Hassler, D. Luest, Rui Sun
- Physics, Mathematics
- 3 December 2013

A bstractNon-geometric string backgrounds were proposed to be related to a nonassociative deformation of the space-time geometry. In the flux formulation of double field theory (DFT), the structure… Expand

61 6- PDF

Asymmetric orbifolds, non-geometric fluxes and non-commutativity in closed string theory

- C. Condeescu, I. Florakis, D. Luest
- Physics
- 28 February 2012

A bstractIn this paper we consider a class of exactly solvable closed string flux backgrounds that exhibit non-commutativity in the closed string coordinates. They are realized in terms of… Expand

107 6- PDF

Double field theory on group manifolds

- R. Blumenhagen, F. Hassler, D. Luest
- Physics
- 23 October 2014

A bstractA new version of double field theory (DFT) is derived for the exactly solvable background of an in general left-right asymmetric WZW model in the large level limit. This generalizes the… Expand

76 6- PDF

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